Automatic grain-weigher



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AUTOMATIC GRAIN WEIGHBR. No. 344,663. Patented June 29, 1886.

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MILES K. LE\VIS AND FRANCIS S. LEVIS, OF HASTINGS, NEBRASKA.

AUTOMATIC GRAIN-WEIGHER.

SPECIFICATION' forming part of Letters Patent No. 344,663, dated June 29, 1886.

Application filed August 20, i585.

To @ZZ whom it may concern:

Be it known that we, MILES K. LEwIs and FRANCIS S. LEWIS, citizens of the United States, residing at Hastings, in the county of Adams and State of Nebraska. have invented certain new and useful Improvements in Grain Veighers and Loaders; and we do declare the following to be a full, clear, and exact description ofthe invention,such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is arepresentation ot' side elevation of our device. Fig. 2 is a perspective view ofthe fulcrum l? removed from the main frame. Fig. 3 is a side view of the device complete with the car in a dumping position 'with two of the corner-posts broken away; and Figs. 4 aud 5 are sectional detail views.

Thisinvention has relation to grain weighers and loaders; and it consists in the construction, novel arrangement, and adaptation of devices, as will be hereinafter more fully set forth and claimed.

In the accompanying drawings, A indicates the Inain frame of the machine, which is composed of a suitable base, B, and four corneruprights, C, which .are connected by girders D.

E E are two opposite vertical posts, rmly secured to the main frame and carry the car lookin g and tripping mechanism. These posts are wider than the corner-posts and extend in ward beyond them, as show n.

K indicates a car having lateral guide-eyes or loops L, and J J are vertically and oppositely arranged guide-rods for the said eyes of the car. The same side of the car thatcarries the guide-eyes may also be provided with friction-rollers, as L', engaging the said vertical guide-rods or the vertical posts E E The car or receptacle K is provided with a drop-bottom composed of two hinged sections, L3 L4, the hinge-connection being at their outer longitudinal edges, and from such edges extend at a little greater than a right angle arms M M, carrying at their outer ends friction-rollers N. One side of each vertical post E is provided near its inner edge with a fixed (No model.)

vertical fiange, G, thelower edges of which stop at or about the bottom of the ear when at its lowest or discharging point. Above the upper end of these anges and coincident therewith are fixed vertical flanges a a, which are carried outward and downward from their lower ends to or about the lower ends of the flanges G, leaving a short interval between the upper ends of the said anges, and a lateral or vertical inteispace,b,between the same. To the upper ends of the Ilanges G are hinged short strips H, which engage by their upper ends the inner curved sides of the Iianges c, and in such position form with the flanges G and c a continuous vertical tlange,-by which the rollers 0i' the drop-doors ofthe carriage are engaged in their downward movement and the said doors held in a closed position. These rollers engage the inner side of the curved iiange F during the upward movement of the car which Serve to close the doors of the car.

The hinge-strips II are provided with angular extensions, as shown, and are connected with the said posts E by means ot' spiral or othersuitable springs to hold the upper edge of the strip H against the curved flange F and at the base ofthe vertical branches a..

P indicates a fulcrum which is oi a peculiar construction, and is arranged on the top of the main frame and above one of the vertical posts E. This fulcrurn is provided with two inner vertical bearings, R R, the forward or inner ones of which are slightly above the outer stopbearings, It It', for a purpose that will be presently explained. f

T indicates the scale-beam, which serves the additional function of operating the car. This scale-beam is graduated and provided with a slide weight or pea, T, which carries a set-screw for securing the same to the beam at any desired point thereon. This beam is also provided near its inner end with two lateral fulcrum-pins, S S, and two similar stop-pins, S S, which are designed to bear in the brackets or branches R and It during operation, and the inner end of the beam is connected to the bail K of the car by means of Vthe links Kl and K3.

At one side of the main frame we providea register, V, which may consist of a train of wheels of any ordinary construction inclosed in a suitable case and having a lever, K, pro- IOO jecting at one end of said case in a position to be engaged by the arm Y on the car when the latter has been elevated to the proper height, so that the register may be operated at each ascent of the car.

Z indicates an inclined chute arranged on the top ofthe main frame and in a position to discharge the grain Ainto the car as it is received from an elevator or other source.

a indicates an inclined chute or pan,which is arranged in the bottom of the main frame, and is designed to receive the grain as it is discharged from the car and convey the same to any suitable receptacle.

This device is designed to work automatically, and the operation is as follows: The car, when empty, by the weight ofthe sliding pea on the scale-beam will be held at the upper portion of t-he main frame with the drop-doors closed, as shown in Fig. l of the drawings,and in this position the outer or stop pins ot' the said beam will rest in the outer bearings, R. The grain being now let into the car from the chute Z, the inner end of the beam will be brought down by the car,when the friction-rollers N of the arms M will travel down against the inner faces of the vertical flanges on the posts E E until they reach the lower end of the lower flange-section, G, when they will throw outwardly and allow the doors to fall open and consequently discharge the grain from the car. In-this position of the car (see Fig. 3) it will be observed that the frictionrollers on the arms M of the doors L3 L4 are in a position to engage the inner sides of the curved flanges F when the car is elevated, which is eti'ected by the weight of the scalepea, and when the said rollers reach the upper end of the curved portion of these flanges F they engage the upperends of the short hinged strips Hand press' them inward until they pass on to the inner faces of the flanges a,when the doors of the car willhave beenclosed and held so until the rollers again reach thelower ends of the ianges G,when the operation will be repeated. When the car is raised, as before described, it will be seen that the outer or stop pins ofthe scale-beam will rest in the outer or stop brackets, R', and remain in such position until the proper quantity of grain has been l weighed and deposited in the car. The fulcrum-point will then be transmitted to theinner brackets, R, and theinner or fulcrum pins of the lever during the descending and'ascending movements of the car. that by the employment of the additional or stop bearings R, the car will be prevented from a too harsh and rapid upward movement, as the said bearings will serve as a check or means of retarding the downward motion of the onter end of the scalebeam, and consequently lessen the throw of the said beam.

Having described this invention, what we claim isl. A grain weighing and loading machine having a traveling carriage providedy with a sectional hinged bottom, arms secured to the sections carrying friction-rollers,and a curved flange and a straight flange secured toa verti- Vcal member, so as to be engaged by the said rollers to automatically open and close the doors of the car when the latter ascends and descends, substantially as specified.

2. In a grain-weighing machine, the combination, with the verticalposts E E.ofthe curved ianges F, thc straight ii'anges G, the hinged spring-actuatedstrip H, and the verticallytraveling car, having the hinged bottom and the arms secured to the said bottom and carrying friction-rollers at their outer ends, substantially as specified.

3. In a grain-weighing machine, the combination, with the main frame, of the traveling car, the scale-beam connected with the said car and provided with the fulcrum-pins S and the stop-pins S', and the bracket having the Vertical fulcrum branches R and the stop branches R', all adapted to operate substantially as spcciiied.

In testimony whereof we aflix our signatures in presence of two witnesses.

MILES K.'LEWIS. FRANCIS S.` LEVIS.

Witnesses for M. K. Lewis:

PHILIP O. MASI, THEO. MUNGEN.'

Witnesses for F. S. Lewis:

L. B. PALMER,

. S. M. WRIGHT..

It will also be seen U 

